基本信息:
- 专利标题： POWER STORAGE DEVICE AND METHOD FOR MANUFACTURING POWER STORAGE DEVICE
- 申请号：EP22876363.7 申请日：2022-09-28
- 公开(公告)号：EP4411974A1 公开(公告)日：2024-08-07
- 发明人： KOZUKI, Kiyomi , SAKAMOTO, Shinichi , GESHI, Shinya
- 申请人： Panasonic Intellectual Property Management Co., Ltd.
- 申请人地址： JP Kadoma-shi, Osaka 571-0057 22-6, Moto-machi
- 专利权人： Panasonic Intellectual Property Management Co., Ltd.
- 当前专利权人： Panasonic Intellectual Property Management Co., Ltd.
- 当前专利权人地址： JP Kadoma-shi, Osaka 571-0057 22-6, Moto-machi
- 代理机构： Novagraaf International SA
- 优先权： JP 21161249 2021.09.30
- 国际申请： JP2022036230 2022.09.28
- 国际公布： WO2023054497 2023.04.06
- 主分类号： H01M50/538
- IPC分类号： H01M50/538 ; H01G11/70 ; H01G11/74 ; H01G11/82 ; H01G11/84 ; H01M50/107 ; H01M50/533 ; H01M50/545 ; H01M50/56
摘要：
A power storage device includes a first electrode having a first current collector, a second electrode having a second current collector, and a separator interposed between the first electrode and the second electrode. The first electrode, the second electrode, and the separator constitute a wound body having a columnar shape. The power storage device further includes a case having a cylindrical bottomed shape for accommodating the wound body, and a current collection plate electrically connected to the first electrode and the case. The first electrode has an overlapping region overlapping the current collection plate when viewed from a case axial direction and a non-overlapping region not overlapping the current collection plate when viewed from the axial direction. The first electrode and the current collection plate are electrically connected to each other in the overlapping region. The first current collector is provided in at least a part of the non-overlapping region, and has a contact part in contact with the case bottom.
IPC结构图谱:
| H | 电学 |
| --H01 | 基本电气元件 |
| ----H01M | 用于直接转变化学能为电能的方法或装置，例如电池组 |
| ------H01M50/00 | 除燃料电池外的电化学电池非活性部件的结构零部件或制造工艺，例如:混合电池 |
| --------H01M50/10 | .单个电池或电池组的初级电池箱、套或罩 |
| ----------H01M50/502 | ..内部连接用于相邻电池的连接终端；内部连接用于电池组外部的连接单元 |
| ------------H01M50/538 | ...缠绕或折叠电极堆叠结构的多个导线或焊垫连接 |